Lenovo ThinkPad E480 Hardware Maintenance Manual
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Lenovo ThinkPad E480 Hardware Maintenance Manual

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E480, E485, and R480
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  • Page 1 E480, E485, and R480 Hardware Maintenance Manual...
  • Page 2 Appendix A “Notices” on page 91. First Edition (November 2017) © Copyright Lenovo 2017. LIMITED AND RESTRICTED RIGHTS NOTICE: If data or software is delivered pursuant to a General Services Administration “GSA” contract, use, reproduction, or disclosure is subject to restrictions set forth in Contract No. GS-...

  • Page 3: Table Of Contents

    Checkout guide ....Locating FRUs and CRUs ... Lenovo Companion ... Major FRUs .
  • Page 4 1040 Hard disk drive ... . . 2020 LCD panel....1050 Fingerprint reader card ..2030 Hinge kit .

  • Page 5: About This Manual

    About this manual ® This manual contains service and reference information for the following ThinkPad products. ThinkPad E480 and R480 Machine type (MT) 20KN, 20KQ, and 20KR ThinkPad E485 Machine type (MT) 20KU Use this manual along with the advanced diagnostic tests to troubleshoot problems.
  • Page 6 E480, E485, and R480 Hardware Maintenance Manual...

  • Page 7: Chapter 1. Safety Information

    Do not use this type of mat to protect yourself from electrical shock. © Copyright Lenovo 2017...

  • Page 8: Safety Inspection Guide

    • Find the room emergency power-off (EPO) switch, disconnecting switch, or electrical outlet. If an electrical accident occurs, you can then operate the switch or unplug the power cord quickly. • Do not work alone under hazardous conditions or near equipment that has hazardous voltages. •...

  • Page 9: Handling Devices That Are Sensitive To Electrostatic Discharge

    0.1 ohm or less between the external ground pin and the frame ground. b. The power cord should be the authorized type specified for your computer. Go to: http:// www.lenovo.com/serviceparts-lookup c. Insulation must not be frayed or worn. 4. Check for cracked or bulging batteries.

  • Page 10: Grounding Requirements

    – When working on a double-insulated or battery-operated system, use an ESD common ground or reference point. You can use coax or connector-outside shells on these systems. – Use the round ground prong of the ac plug on ac-operated computers. Grounding requirements Electrical grounding of the computer is required for operator safety and correct system function.
  • Page 11 DANGER DANGER DANGER DANGER DANGER Chapter 1 Safety information...
  • Page 12 E480, E485, and R480 Hardware Maintenance Manual...
  • Page 13 PERIGO PERIGO Chapter 1 Safety information...
  • Page 14 PERIGO PERIGO PERIGO PERIGO PERIGO E480, E485, and R480 Hardware Maintenance Manual...
  • Page 15 PERIGO DANGER DANGER DANGER DANGER Chapter 1 Safety information...
  • Page 16 DANGER DANGER DANGER DANGER VORSICHT E480, E485, and R480 Hardware Maintenance Manual...
  • Page 17 VORSICHT VORSICHT VORSICHT VORSICHT Chapter 1 Safety information...
  • Page 18 VORSICHT VORSICHT VORSICHT E480, E485, and R480 Hardware Maintenance Manual...
  • Page 19 Chapter 1 Safety information...
  • Page 20 E480, E485, and R480 Hardware Maintenance Manual...
  • Page 21 Chapter 1 Safety information...
  • Page 22 E480, E485, and R480 Hardware Maintenance Manual...
  • Page 23 Chapter 1 Safety information...
  • Page 24 E480, E485, and R480 Hardware Maintenance Manual...
  • Page 25 Chapter 1 Safety information...
  • Page 26 E480, E485, and R480 Hardware Maintenance Manual...

  • Page 27: Chapter 2. Important Service Information

    UEFI BIOS downloads. Telephone numbers for Lenovo Support are available at: http://www.lenovo.com/support/phone • System Disassembly/Reassembly videos that show the FRU removals or replacements for the Lenovo authorized service technicians are available in the following support site: http://www.lenovoservicetraining.com/ion/...

  • Page 28: Important Notice For Replacing A System Board

    Dynamic Configure To Order (CTO) This model provides the ability for a customer to configure a Lenovo solution from a web site, and have this configuration sent to fulfillment, where it is built and shipped directly to the customer. The machine label and eSupport will load these products as the 4-character MT, 4-character model and 2-character country code.

  • Page 29: Fru Identification

    20AA0009UK). FRU identification Use Lenovo eSupport to identify major FRUs, FRU part numbers, and FRU descriptions for a product at an MT - serial number level. Examples of major FRUs are hard disk drive, system board, liquid crystal display (LCD), and memory module.
  • Page 30 E480, E485, and R480 Hardware Maintenance Manual...

  • Page 31: Chapter 3. General Checkout

    This chapter introduces following information: • “What to do first” on page 25 • “Checkout guide” on page 26 – “Lenovo Companion” on page 26 – “Quick test programs” on page 26 – “UEFI diagnostic program” on page 27 – “Bootable diagnostic programs” on page 28 •...

  • Page 32: Checkout Guide

    Lenovo Companion is preinstalled on the computer and also is available for download at: https://shop.lenovo.com/us/en/accessories/software/apps/lenovo-apps/companion/ To run the Lenovo Companion program, open the Start menu and click Lenovo Companion, and then follow the instructions on the screen. For additional information, see the help system of the program.

  • Page 33: Uefi Diagnostic Program

    • Lenovo Wireless Quick Test • Lenovo PCI Express Quick Test • Lenovo RAID Quick Test • Lenovo Motherboard Bus Quick Test The quick test programs are applicable on the following operating systems: ® ® • Microsoft Windows • Microsoft Windows 8.1 •...

  • Page 34: Bootable Diagnostic Programs

    If the computer you are servicing is not installed with the UEFI diagnostic program, you can download a bootable diagnostic program from the Lenovo Support Web site. The bootable diagnostic programs enable you to test computer memory and internal storage devices, view system information, and check and recover the internal storage devices.

  • Page 35: Power System Checkout

    To check the USB-C type ac power adapter, do the following: 1. Connect the computer to a power outlet and turn on the computer. 2. Start Lenovo Companion program, and then click Hardware Settings ➙ Power. The ac power adapter information is displayed.

  • Page 36: Checking The Coin-Cell Battery

    Move your pointer to the battery-status icon in the Windows notification area to check the battery status. The battery-status icon displays the percentage of battery power remaining and how long you can use your computer before you must charge the battery. To check whether the battery charges properly during operation, do the following: 1.

  • Page 37: Chapter 4. Related Service Information

    Select the CD/DVD drive as the 1st Boot Device. 2. Insert the Operating System Recovery Disc into the DVD drive. 3. Press F10 to save the ThinkPad Setup program configuration changes. Follow the instructions on the screen to begin the recovery process. © Copyright Lenovo 2017...

  • Page 38: Recovery Overview For The Windows 10 Operating System

    4. Select your language and click Next. 5. Read the license. If you agree with the terms and conditions, select I accept these terms and conditions and then click Next. If you do not agree with the terms and conditions, follow the instructions on the screen.

  • Page 39: Recovering Your Operating System If Windows 10 Fails To Start

    Note: The GUI items of the operating system might change without notice. 1. Open the Start menu and then click Settings ➙ Update & security ➙ Recovery. 2. In the Advanced startup section, click Restart now ➙ Troubleshoot ➙ Advanced options. 3.

  • Page 40: Passwords

    If it has, it can be used for access to the hard disk drive. If no master hard disk password is available, neither Lenovo nor Lenovo authorized service technicians provide any services to reset either the user or the master hard disk password, or to recover data from the hard disk drive. The hard disk drive can be replaced for a scheduled fee.

  • Page 41: How To Remove The Power-On Password

    To put the system back to operational status, the only Lenovo and Lenovo-authorized service solution would be to replace the hard disk drive, hybrid drive, or solid-state drive with a scheduled fee.

  • Page 42: Power Management

    9. Press F10 to save changes and exit the ThinkPad Setup program. The user hard disk password and the master hard disk password have been removed. Power management To reduce power consumption, the computer has two power management modes: sleep and hibernation. Sleep mode When the computer enters sleep mode, the following events occur in addition to what occurs in screen blank mode:...

  • Page 43: Symptom-To-Fru Index

    Also, the computer goes into hibernation mode automatically after a period of inactivity specified in power plan settings. When the power is turned on, the computer returns from hibernation mode and resumes operation. The hibernation file in the boot record on the hard disk drive, hybrid drive, or solid-state drive is read, and system status is restored from the hard disk drive, hybrid drive, or solid-state drive.
  • Page 44 Table 2. Numeric error codes (continued) Symptom or error FRU or action, in sequence 0189 Replace the system board. Invalid RFID Configuration Information Area. 0190 1. Charge the battery pack. Critical low-battery error 2. Replace the battery pack. 0191 1. Run the ThinkPad Setup program, and then save System Security—Invalid Remote Change requested.

  • Page 45: Error Messages

    Beep symptoms Lenovo SmartBeep technology enables you to decode beep errors with your smartphone when a black screen occurs with beeps from your computer. To decode the beep error with Lenovo SmartBeep technology, do the following: 1.

  • Page 46: No-Beep Symptoms

    Error codes Solutions 0001: Reset error (platform reset not de-asserted) 1. Remove all power resources (the ac power adapter, removable battery, and coin-cell battery). If your computer has a built-in battery, reset the computer by inserting a straightened paper clip into the emergency-reset hole.

  • Page 47: Lcd-Related Symptoms

    LCD technology, but excessive pixel problems can cause viewing concerns.If the LCD you are servicing has two or less visible defective pixels, it should not be considered faulty. However, if the LCD has three or more visible defective pixels, it will be deemed as defective by Lenovo and it should be replaced. Notes: •...
  • Page 48 3. Remove or disconnect all of the following devices: a. Non-ThinkPad devices b. Devices attached to the docking station or the port replicator c. Printer, mouse, and other external devices d. Battery pack e. Hard disk drive, hybrid drive, or solid-state drive f.

  • Page 49: Chapter 5. Status Indicators

    This indicator shows the status of Fn Lock function. For more information, see Chapter 6 “Function keys” on page 45. When this indicator is on, the speakers are muted. Speaker-mute indicator Microphone-mute indicator When this indicator is on, the microphones are muted. © Copyright Lenovo 2017...
  • Page 50 Table 6. Status indicators (continued) Indicator Meaning When this indicator is on, the camera is in use. Camera status indicator System status indicators Blinking three times: The computer is initially connected to power. On: The computer is in use. Off: The computer is off or in hibernation mode. Blinks slowly: The computer is in sleep mode.

  • Page 51: Chapter 6. Function Keys

    Invoke the function defined by yourself. To define or change the action for the F12 key, do the following: 1. Open Lenovo Companion. 2. Click Hardware Settings and then click the input icon 3. Locate the Keyboard: User-defined Key section and follow the instructions on the screen to complete the setting.
  • Page 52 Table 7. Function keys (continued) Fn+4 Puts your computer into sleep mode. To return to normal operation, press the Fn key or the power button. Fn+B Has the same function as the Break key on a conventional keyboard. Fn+K Has the same function as the ScrLK key on a conventional keyboard. Fn+P Has the same function as the Pause key on a conventional keyboard.

  • Page 53: Chapter 7. Locations

    This topic helps you locate the controls, connectors, and indicators on your computer. Front view Microphones Camera Power button Security-lock slot Ethernet connector USB 2.0 connector MicroSD card slot Fingerprint reader (available on some models) ® Trackpad TrackPoint buttons TrackPoint pointing stick © Copyright Lenovo 2017...

  • Page 54: Bottom View

    Bottom view Fan louvers USB-C™ connector HDMI™ connector Always On USB 3.1 connector Gen 1 USB 3.1 connector Gen 1 Audio connector Locating FRUs and CRUs This topic introduces the following service parts: • “Major FRUs” on page 50 • “LCD FRUs” on page 52 E480, E485, and R480 Hardware Maintenance Manual...
  • Page 55 CRUs, you can either install the CRU yourself or you can request that a Service Provider install the CRU according to the warranty service for your product. If you intend on installing the CRU, Lenovo will ship the CRU to you. CRU information and replacement instructions are shipped with your product and are available from Lenovo at any time upon request.

  • Page 56: Major Frus

    Major FRUs Table 8. Major FRUs FRU descriptions Self-service Optional service LCD unit Keyboard Keyboard bezel assembly E480, E485, and R480 Hardware Maintenance Manual...
  • Page 57 Power cord ac power adapter Available on some models Note: The Lenovo factory recovery USB key and the Lenovo recovery disc set are used to restore the Microsoft Windows operating system. They might not come with the computer, and a user might order them from http://www.lenovo.com/lenovorecovery...

  • Page 58: Lcd Frus

    LCD FRUs Table 9. LCD FRUs FRU descriptions Self-service Optional service LCD bezel assembly Integrated camera and microphone combo card LCD panel Hinge kit WLAN antenna assembly LCD rear cover assembly LED and camera cable assembly E480, E485, and R480 Hardware Maintenance Manual...

  • Page 59: Connector And Cable Guide

    Connector and cable guide This topic provides information to help Lenovo authorized service technicians identify connectors and cables for replacement purpose. To view each FRU and the exploded illustration of the computer, see “Major FRUs” on page 50 and “LCD FRUs” on page 52.
  • Page 60 Table 10. System board (continued) Item Internal cable required Connector (location) Cable connection Audio connector Connect headphones or a headset with 3.5-mm (external) (0.14-inch) 4-pole plug to this connector. Coin-cell battery Coin-cell battery cable The coin-cell battery comes with cable. Connect the connector (internal) cable to this connector.
  • Page 61 Table 11. LCD panel Ite- Connector (location) Internal cable required Cable connection LCD panel connector LCD cable Connect one end to this connector and the other end (internal) to the system board. Camera/microphone combo card connector and cable Table 12. Camera/microphone combo card Connector (location) Internal cable required Cable connection...

  • Page 62: Looking Up Fru Information

    Connect one end of the wireless-LAN black antenna to connector (internal) the A-cover and the other end to this connector. Looking up FRU information For detailed FRU information, including part numbers, descriptions, and substitution part numbers, go to: http://www.lenovo.com/serviceparts-lookup E480, E485, and R480 Hardware Maintenance Manual...

  • Page 63: Chapter 8. Fru Replacement Notices

    CRU to you. CRU information and replacement instructions are shipped with your product and are available from Lenovo at any time upon request. You can find a list of CRUs for your product in this Hardware Maintenance Manual. An electronic version of this manual can be found at http://www.lenovo.com/support...

  • Page 64: Retaining Serial Numbers

    Maintenance Key. Note: Only an authorized Lenovo service technician can access the above Web site. 3. Restart the computer. 4. When the logo screen is displayed, press Esc. The ThinkPad Config Information Update Utility interface is displayed.

  • Page 65: Retaining The Uuid

    Maintenance key. Note: Only an authorized Lenovo service technician can access the above Web site. 3. Restart the computer. 4. When the logo screen is displayed, press Esc. The ThinkPad Config Information Update Utility interface is displayed.
  • Page 66 E480, E485, and R480 Hardware Maintenance Manual...

  • Page 67: Chapter 9. Removing Or Replacing A Fru

    CRU to you. CRU information and replacement instructions are shipped with your product and are available from Lenovo at any time upon request. You can find a list of CRUs for your product in this Hardware Maintenance Manual. An electronic version of this manual is available for downloading at http:// www.lenovo.com/support...

  • Page 68: Before Servicing The Computer

    Attention: The system board is sensitive to, and can be damaged by, electrostatic discharge (ESD). Before touching it, establish personal grounding by touching a ground point with one hand or by using an electrostatic discharge strap. Before servicing the computer Carefully read this topic before servicing the computer.

  • Page 69: 1020 Keyboard

    When installing: Ensure that the microSD card is installed firmly. 1020 Keyboard Removal steps of the keyboard Step Screw (quantity) Color Torque 0.143 Nm M2 × 1.65 mm, flat-head, nylon-coated (2) Silver (1.4 kgf-cm) Chapter 9 Removing or replacing a FRU...
  • Page 70 E480, E485, and R480 Hardware Maintenance Manual...

  • Page 71: 1030 Base Cover Assembly

    When installing: Ensure that the connectors are attached firmly. 1030 Base cover assembly Removal steps of the base cover assembly Chapter 9 Removing or replacing a FRU...
  • Page 72 Applying labels to the bottom cover The new bottom cover FRU is shipped with a kit containing labels of several kinds. Apply those labels when you replace the bottom cover. For the labels that are not shipped with the new bottom cover, peel them off from the old bottom cover, and adhere them to the new one.

  • Page 73: 1040 Hard Disk Drive

    1040 Hard disk drive For access, remove this FRU: • “1030 Base cover assembly” on page 65 Attention: • Do not drop the drive or apply any physical shock to it. The drive is sensitive to physical shock. Improper handling can cause damage and permanent loss of data. •...

  • Page 74: 1050 Fingerprint Reader Card

    When installing: Ensure that the connector is attached firmly. 1050 Fingerprint reader card For access, remove these FRUs: • “1030 Base cover assembly” on page 65 • “1040 Hard disk drive” on page 67 Removal steps of the fingerprint reader card E480, E485, and R480 Hardware Maintenance Manual...

  • Page 75: 1060 Memory Module

    Step Screw (quantity) Color Torque M2 × 2 mm, flat-head, nylon-coated (1) Black 0.98 Nm (1.0 kgf-cm) When installing: Ensure that the connectors are attached firmly. 1060 Memory module For access, remove this FRU: • “1030 Base cover assembly” on page 65 Chapter 9 Removing or replacing a FRU...

  • Page 76: 1070 M.2 Solid-State Drive

    Removal steps of the memory module When installing: Insert the notched end of the memory module into the memory slot. Press the memory module in firmly, and pivot it downward until it snaps into place. Ensure that the memory module is firmly installed in the slot and does not move easily.

  • Page 77: 1080 I/O Card

    1080 I/O card For access, remove these FRUs: • “1030 Base cover assembly” on page 65 • “1070 M.2 solid-state drive” on page 70 Removal steps of the I/O card Step Screw (quantity) Color Torque M2.5 × 5 mm, flat-head, nylon-coated (2) Black 0.294 Nm (3.0 kgf-cm)

  • Page 78: 1090 Speaker Assembly

    Step Screw (quantity) Color Torque M2 × 2.5 mm, flat-head, nylon-coated (1) Silver 0.181 Nm (1.85 kgf-cm) When installing: Ensure that the screws are installed firmly. 1090 Speaker assembly For access, remove this FRU: • “1030 Base cover assembly” on page 65 Removal steps of the speaker assembly E480, E485, and R480 Hardware Maintenance Manual...

  • Page 79: 1110 Wireless Lan Card

    Step Screw (quantity) Color Torque Black 0.181 Nm M2 × 4.5–2.2 mm, big-head, nylon-coated (4) (1.85 kgf-cm) When installing: Ensure that the connector is attached firmly. Ensure that the cables are routed properly. 1110 Wireless LAN card For access, remove this FRU: •...

  • Page 80: 1120 Battery Pack

    The only exception to this is if the battery pack is physically damaged or a customer is reporting a possible safety issue. If the Lenovo Companion program is not installed on the computer, the customer should download and install the program to diagnose the battery pack, before getting a non-physically damaged battery pack replaced.

  • Page 81: 1130 Coin-Cell Battery

    Step Screw (quantity) Color Torque M2 × 4 mm, small-head, nylon-coated (2) Black 0.181 Nm (1.85 kgf-cm) When installing: Ensure that the connector is attached firmly. 1130 Coin-cell battery For access, remove these FRUs: • “1030 Base cover assembly” on page 65 •...

  • Page 82: 1140 Thermal Fan Assembly

    Removal step of the coin-cell battery When installing: Ensure that the connector is attached firmly. 1140 Thermal fan assembly For access, remove this FRU: • “1030 Base cover assembly” on page 65 Removal step of the thermal fan assembly When you install the thermal fan assembly: •...

  • Page 83: 1150 Trackpad Cable And Trackpad

    • Before you attach the thermal fan assembly to the computer, apply thermal grease, at an amount of 0.2 grams, on the part marked as shown in the following illustrations. Either too much or too less application of grease can cause a thermal problem due to imperfect contact with a component. You might need to peel the thin film off from the rubbers marked •...

  • Page 84: 1160 Keyboard Bezel Assembly And Lcd Unit

    Removal steps of the trackpad cable and trackpad Removal steps of the trackpad Step Screw (quantity) Color Torque M2 × 2 mm, flat-head, nylon-coated (4) Bronze 0.181 Nm (1.85 kgf-cm) 1160 Keyboard bezel assembly and LCD unit For access, remove these FRUs in order: •...
  • Page 85 • “1040 Hard disk drive” on page 67 • “1060 Memory module” on page 69 • “1070 M.2 solid-state drive” on page 70 • “1080 I/O card” on page 71 • “1090 Speaker assembly” on page 72 • “1110 Wireless LAN card” on page 73 •...

  • Page 86: 1170 System Board

    1170 System board Important notices for handling the system board When handling the system board, read the following: • The system board has an accelerometer, which can be broken when several thousands of G-forces are applied. Note: Dropping a system board from a height of as little as 0.15 m (6 inches) so that it falls flat on a hard bench can subject the accelerometer to as much as 6000 G's of shock.
  • Page 87 ThinkPad E480 and R480 For models with a discrete thermal module Microprocessor Video Graphic card (VGA) For models with an integrated thermal module Microprocessor ThinkPad E485 Chapter 9 Removing or replacing a FRU...
  • Page 88 Accelerated Processing Unit (APU) Removal steps of the system board E480, E485, and R480 Hardware Maintenance Manual...

  • Page 89: 2010 Lcd Bezel Assembly

    Step Screw (quantity) Color Torque M2 × 2.5 mm, flat-head, nylon-coated (5) Silver 0.181 Nm (1.85 kgf-cm) When you install the system board: Ensure that all the connectors are attached firmly to the system board. 2010 LCD bezel assembly Removal steps of the LCD bezel assembly For access, remove this FRU: •...

  • Page 90: 2020 Lcd Panel

    2020 LCD panel For access, remove this FRU in order: • “2010 LCD bezel assembly” on page 83 Removal steps of the LCD panel Step Screw (quantity) Color Torque M2 × 2.5 mm, flat-head, nylon-coated (4) Silver 0.181 Nm (1.85 kgf-cm) When you install the LCD panel: Ensure that all the connectors are attached firmly.

  • Page 91: 2030 Hinge Kit

    2030 Hinge kit For access, remove these FRUs in order: • “1160 Keyboard bezel assembly and LCD unit” on page 78 • “2010 LCD bezel assembly” on page 83 • “2020 LCD panel” on page 84 Removal steps of the short hinge kit Step Screw (quantity) Color...
  • Page 92 Removal steps of the long hinge kit Step Screw (quantity) Color Torque M2.5 × 2.5 mm, flat-head, nylon-coated (6) Black 0.294 Nm (3.0 kgf-cm) M2 × 2.5 mm, flat-head, nylon-coated (2) Silver 0.181 Nm (1.85 kgf-cm) When you install the hinge kit: E480, E485, and R480 Hardware Maintenance Manual...

  • Page 93: 2040 Integrated Camera And Microphone Combo Card

    Ensure that all the connectors are attached firmly. 2040 Integrated camera and microphone combo card For access, remove these FRUs in order: • “1160 Keyboard bezel assembly and LCD unit” on page 78 • “2010 LCD bezel assembly” on page 83 •...

  • Page 94: 2060 Wireless Lan Antennas Assembly And Lcd Rear Cover Assembly

    Removal steps of the LED and camera cable assembly 2060 Wireless LAN antennas assembly and LCD rear cover assembly For access, remove these FRUs in order: • “1030 Base cover assembly” on page 65 • “2010 LCD bezel assembly” on page 83 •...
  • Page 95 Remove the wireless LAN antennas assembly from the LCD rear cover assembly. Antenna locations Wireless LAN main antenna (gray) Wireless LAN auxiliary antenna (black) Peel off the stickers on the wireless LAN antennas assembly from the LCD rear cover assembly. Attention: When you route the cables, ensure that they are not subject to any tension.
  • Page 96 E480, E485, and R480 Hardware Maintenance Manual...

  • Page 97: Appendix A. Notices

    Lenovo representative for information on the products and services currently available in your area. Any reference to a Lenovo product, program, or service is not intended to state or imply that only that Lenovo product, program, or service may be used. Any functionally equivalent product, program, or service that does not infringe any Lenovo intellectual property right may be used instead.

  • Page 98: Electronic Emissions Notices

    For electronic emission information on Class B digital devices, refer to the corresponding information in the User Guide. EU contact: Lenovo, Einsteinova 21, 851 01 Bratislava, Slovakia Trademarks The following terms are trademarks of Lenovo in the United States, other countries or both: Lenovo ThinkPad ThinkPad logo TrackPoint Microsoft, Windows, and Windows Server are trademarks of the Microsoft group of companies.

  • Page 99: Appendix B. Abbreviation Table

    Federal Communications Commission Field Replaceable Unit General Announce Variant Graphics Processing Unit Hard Disk Drive HDMI High-definition multimedia interface Integrated circuits ICCID Integrate circuit card identity International Standardization Organization Local area network Liquid Crystal Display Media Access Control © Copyright Lenovo 2017...
  • Page 100 Abbreviation Term Machine type Machine type and model Personal Computer Platform Controller Hub POST Power-on self-test Random Access Memory Radio frequency RFID Radio-frequency identification Ring indicator Registered jack SATA Serial Advanced Technology Attachment Subscriber Identity Module Supervisor password TFTs Thin-film transistors UEFI Unified Extensible Firmware Interface Universal Serial Bus...
  • Page 102 Part Number: SP40G76551 Printed in China (1P) P/N: SP40G76551 *1PSP40G76551*...

This manual is also suitable for:

Thinkpad e485Thinkpad r480

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